list pools a node is in via tmsh

Something like this should do the trick;

 

 list ltm pool | grep -B 20 x.x.x.x | grep ltm pool 

 

The -B 20 specifies the display of twenty 'lines' of output prior to the match for x.x.x.x. If you have pools with many members you may want to increase the value. Each node in a pool takes three lines, each pool name takes 2. So 20 should suffice for pools with up to six members but of course beware that the value isn't too high either else you'll potentially see pool names that the node isn't a member of.

 

 

OK, I've tested further using this to show line numbers and whatever the -B value grep seems smart enough not to duplicate matches;

 

list ltm pool | grep -B 30 x.x.x.x | grep -n ltm pool

 

I would recommend using the "one-line" parameter to help ensure you don't get false positives due to the vagaries of configuration lengths.

 

tmsh -q list ltm pool one-line | grep -E '($node_hostname|$node_ip)' | awk '{ print $3 }'

 

you can also use the "display-threshold" preference to stop tmsh from giving you the "display all items" prompt (set to some reasonably large number for your environment):

 

modify cli preference display-threshold 500

 

i think tmsh's confirmation is getting in the way of this executing. when i pipe the output to grep it hangs indefinitely. here's an example of my confirmation:

 

 

nambrosch@dqulb01(Active)(tmos.ltm) list pool

 

Display all 969 items? (y/n) n

 

Looks good, what does the awk command do?

i used it to print out the third parameter, which is the pool name.

Ah OK, nice. Thanks

the prompt was getting in the way of the remainder of the commands executing.

just in case if you have not yet seen this tmsh option.

 

 

-q Prevents tmsh from responding to user actions with questions. This

 

option is useful when writing non-interactive shell scripts from

 

the system shell.